Note: there are several archive samples from 70th and 80th and block 5 (2 year crop rotation) Details of soil sampling method: Spade, 0-22 cm, 4-8 cores from each plot. The cores are mixed. Details of measuring depths and soil layers: Note: There are a few occasional samplings into layers up to 100cm, separation 0-20, 20-60 and 60-100 cm.

Description:
This url links to the GCTE-SOMNET home page where additional project information and methodology can be obtained. This site is currently in a datasharing phase of the network where actual data will become available shortly, at different levels of accessibility. Please follow this link for more information.

There are at least 4 replicates in the experiment. The experiment has a restricted randomized plot design. Control plots: without industrial and organic fertilizers, with industrial fertilizers only, with organic fertilizers only.